Motor.



vm. 874,2oo. l PATBNTED DBG; 17, 1907.

1 Le. L'B. non'.

'101303. lAIPHOATNI'IILBD I0Y.10,1905.

PATENTED' DBO. 17, 19o?. G. P. B. HOYT.

MoTo. 1' A ,APPLICATION FILED l0v.16.1906.

' 4 SHEETS-SHEET 8.

No. 874,200. i

TTOHN PATENTED DHC.` 17, 1907.

4 annu-suns! 4. A

7TOHN .f Theiinventi v and `parts an GABRIEL 12.43. noYT, or NEW YoExjN.; Y.

"Specification of Letters Patent.

MOTOR@ Bateman. 17,1907..

appuntamenti Noventa: 16. 1906.- se'riai Nc '287521,

To all whom imag/'concerns Be i known-that I, GABRiEi-s. P. B. HoYT, a citizen' of the United States, and a resident of the city of New ,York/Jamaica, borough offQueens, 1n the county., of Queens and State ofN ew York', have invented a new and vIm froved, Motor, of whichl the' following is ai ful elear, and exact description.

. l.The 4object ofthe invention is to provlde ai new -and improved motor or explosion or internal combustion engine of the1 two-cycle type, larranged to'produce a high' auxiliary compression Without danger yof leakage, to.

insure a complete removalot'the burned l gases-of theprevious explosion Iby the in-` ,coming new lcharge,without any .loss of the latter; "and 'to overcomeall vibration by balancing .the e -gine1perfectly, andthus insuringea'sy running of the motor.1

consists ofi novel features combinations` oil the same which will; be'more fully described hereinafter and then o in'tedout in the claims.

.A .practicalembodiment.of the invention y is. representedv in the accompanying drawings formmg a part of'this. specicatlon, 1n

whicli'i'similar characters of, reference indicatel corresponding parts in all `the views.;

Figure-1 is a'sectonalplanview of the im provement, on the line l-'l 'otFig 2; Fig. 2'

gis av longitudinal sectional sidel elevation of thereof'being shown in elevation; Fig.' Bis `a cross section .of the same, on the line 3-.-3 of Fig. y.-2'gl1`ig. 1 is an enlarged lan view of part of ,the improvement; and ig. 5isan 'enlarged transverse section of the' improye` ment,- onl the line 5-,5 of Fig. 2'.

fand C2, C3, of which the pistons C ,':C aregrig 4idly connected with each other'bvv a piston.'l

rod C4 common to both pistons C andC, and

,a similarpiston rod C5 connects the pistons'C2 and()3 rigidly with each other. As shown 1n Fig. 1, rthe cylinders B and B" are in axialv alinement with each other Vand are arranged alongside the cylinders B2 and B3, likewise in axial alinement with'each other. The iston rods C?, C5, between the cylinders B, B',

and B2, B3, are provided with vertically-dis,- y

posed guideways, C?, C7, `in which are mounted to slideboxes orcross heads D, D@ and mitting' the 'powerof the Iengine to the other f YEach of the cylinders B, Band B2, B3 is closed at both4 the outer and inner' ends byl lsuitable heads, and the inner, heads' are pro- V,spending piston rods C4 yand C5.

yOn a suitably constructed base orstand A" are secured sets or pairs of cylinders B,"B, and B2, B3, in which reciprocate pistonsC, C

l' D2,'D3, 'respectivelbof which .the boxesD 6.5 i

and -D are engaged lby the crank pins E and E ofthel crank shafts E2. and Eaextendingtransversely "and journaled in suitable bear-- 'ings carried ,by a casing connecting the cyl- '.inders B, B2 vand B-, ,B3 witheach other.v 60

The boxes D? and D3 in the guideway C7 are engaged 'by crank" ins-E4, E5 formingpartbf the vcrank shafts ,42, E3', butstanding diametrically opposite the crank arms-E and E.`

The 'crank shaftsli and E3 are connected 65 with each-other b gear wheels F and F secured on the sha ts and in-V mesh with each other, so thatthe shafts'-E2`and E3 rotate inunison, "and in opposite directions. One of Vthe ,'shafts, preferably` the shaft E, is ro-" '70 vided at one .outer end with'aywhee G, andthe other shaft ETs carried aclntch-pulley.

Hof any approved'con'struction, for transmachinery.v

vided with a x stuing box I for the" correcylinders B, B and B2', B3 is provided, `at its outer end, with a compression and explosion chamber B4, into which extends aspark plug J 'or other ignitmg device for igniting the explosive mixtureat the proper time, and-'they inner end. of each cylinder B, B and B2, B3 'isf jprovided with a suction mixing and comprese4 sion chamber Binto which the explosive'y mixture 11s, drawn, mixed and compressed, as

hereinafter ymore fully explained. At. the 90;

inner `end ofeach compression and ignition chamber B4 is arranged' van vvexhaust port a opening'into an exhaust lchamber K, from which leads an exhaust pipe' K" fory carrying oil" the burnedfga'ses; and the inner -end of `95 each chamber B4 is connected fwith an admis'- `sion port .b leading to a by-pass'L connected by a port c with' the inner end of the suction' ymixingand compression chamber B5 'of the coirespondlngcylinder B, B', B2 or B3 The .100

ports a. and b are so arranged relative one to the other that when apiston C, C', C2 or C3 is on its inward stroke, it first partly uncovers the exhaust port a and then the admisslon port b at thetime the piston nearly reaches 105 the end of its innermost stroke. Each of the pistons C, C", CL and C is provided at the outer face with a bathe or dei'le'cting plate Ca E ach of the 80 i throu sage tion to cause Van outward deflection of thev incurving charge in the upper portion of the corresponding cylinder.

Into each by-pass L opens a suction or check valve N connected with a supply chamber O having a supply pipe P for the explosive charge to passl into the chamber C by wayof the valve N into the by-pass L at the time the `corresponding piston C, C', C2 dr C3 is on its outward stroke, When a piston C, Cf, C2 or C3 is on the inward str oke, the valve N closes, so that the charge drawn into the chamber B" from the byfpass L by way of `the port c is highly compressed; and when the piston C, C', C2 or C3 nears the end of its inward stroke and uncovers the admission port t, then the compressed charge is forced.

om the chamber B5 by way o f the port c, by-pass L and port a into the compression and ignition chamber B4, against a baflleplate C8 and is deflected to the top of the cylinder behind the exploded charge, driving 'out the remaining burned gases and filling -the said chamber B4 with a new and fresh charge, ,to be lsubse uently 'compressed on the outward stroke o the corresponding piston C, C', C2 or C2. y

The by-pass L is provided with an-offset L over which is stretched a screen L2,

igrh which passes the charge on its pasom the chamber B5 to thelchamber B4, t insure ,an intimate mixture of the componentparts of the charges, and also to prel vent back-firing from the chamberl B2L by way lof the port t.' 4

The cylinders B, B2 and B,.B3 are provided .vwith water jackets Q, or other cooling devices, having the usual pipe connection Q' land 1a drain cock Q2. Each of the cylinders B, B B2 and B3. is roperly lubricated from an oil cup R, as-wrl be readily understood by reference to Fig. 2. Lubrication of many parts can be accomplished by splash in crank case., A The operation is as follows: When the engine is in operation and the several parts are 1n the position shown in Figs. l and 2, then explosions take place simultaneously in the chambers B4 of the cylinders B and B3, so

that the pistons C and C3 are caused totravel inwardly by the force of the explosion. As the pistons C, C and C2, C3 are .rigidly connectedv with each other it is evident that the pistons C', C2 move outward at the time'the pistons C, C2 move inward, and the said pistons C,.C2 now compress the charge assed into the chambers B11 of the cylinders and B2 from revious compression in the cham? bers B5 Io the said cylinders.v .The pistons C and C2, during their inward stroke, compress the explosive mixturein the chambers B5 of the cylindersB and-132 and when the pistons C &I1d[C?IJer the inner ends oftheir strokes and successively-uncover the ports a and b,

then the burned gases pass out of the chambers B4 by way ofthe port a and! a new charge passes into the chambers Bl by Way of the admission port I), and against the baflle4 plate C2, to completely drive outthe burned gases, at the same time filling the chambers B4 with a fresh charge. At the time this takes lace, explosions oc'cur in the chambers B4 o the cylinders B and B2, 'to move the pistons C" and C2 inwardly, and consequently'the pistons C and Cfx outwardly. The above-described operation is then repeated; that is to say, two explosions simultaneously take place in diagonally-disposed cylinders B, B3 or B', B2, andthe force of the explosion is transmitted by the correspending pistons C, C3 or C v(J2 and their piston rods C2, C5 and guideways C, C7 to the crank pins E, E" and E4, E5 of the crankshafts E32, 'E2 rotating in unison, and in opposition by the connection of the gear wheels'F and F. By the arrangement described, the charge drawn into the chamber B5 is strongly compressed, sufficiently to readily force the ventire charge by the by-pass L, to the top of the chamber B2, in which the charge is recompressed and ignited at the proper time.

It will be noted that the charge in chamber B5 can be compressed toany desired pressure an'd forced with sufficient pressure into the chamber B2 to drive out the remaining. burned gases withoutdanger of any loss of the fresh charge,` by proportioning the parts accordingly.

By arranging rthe cylinders in pairs, as de-l scribed, and transmittin the power by the mechanism described to t e two shafts lh2and E2 geared with e'a'ch other, it is evident that all rection which has nota corresponding-part working in.' the opposite direct1on;'and' the engine is explosively balanced,. as the ignition takes place atopplosite ends of the engine at the same time, sot at the vibration caused by the explosion at one end is counterbalancedlby an opposing 'equal force caused by the explosion at the other end. It will also `benotedthat the engine is gyrosco'pically balanced, as the fly wheel Gr and the clutch wheel H revolvein opposite directions, -thusl destroying all. tendency of the engine to re-l volveonits base A. Y f t 2vthus described. my invention, I'

Patent y 1. 'A two-cycle explosion' engine, comprising pairs of oppositely' arranged alined cylinders,y the pistonsof each pair being rigidly 'connected With eachother, and allofsaid cylinders -being in the same horizontal plane,

means for constraining all' of the pistons to move inunison,l said cylinders being provided with a-compression and explosion chambei` at one endyhaving an exhaust port, and with a compression and mixing chamber at' the othenend provided with an inlet port, each of said cylindershavin a by-pass con-' necting the chambers, said' y-pass -opening into the compression and explosion chamber ata point suchl that the jcont'e'nts ofthe compression and mixing chamber will be partly compressed before the piston uncovers said opening', 'to permit the passageof said contents to the4 compression. 'and explosion chamber, thepistonof tliemember of one pair being arranged to movev synchronously;

Withthe piston' of the diagonally opposite member of the other pair whereby to balance theengine."` .4

' 2. An explosion engine comprising'multif ple' sets'of cylinders arranged one alongside the .other and each set having tiivoalinedcylinders spaced apart, each vcylinder being' closed `at its ends and having a compression and explosion chamber and a suction, mixing and compression chamber, and each cylind erhavingan exh-austport inthe compression and explosion chamber and a. bv-pass connecting the said chambers ofthe cylindery with `each other, the entrance. end ofthe bypass into the said compression. and explosion chamber bein' opposite and partly in the rear of said exv aust port, pistons reciprocatingin the. said cylinders, a pistonrod..forthe 'claim asn'ew and desire to secure by Letters -I pistons out a pair of alinedcylinders to consaid: cylinders and piston' rods and having diametrically-disposed crank arms engaging. the said guideways, `and gear-Wheels secured on 'the saidl shafts'and in mesh with each other. p f A 8. An'explosion engine comprisin multiple sets of cylinders arranged one a ongside the other and each set havingtwo alined cylinders' spaced apart, each 'cylinder being closed at its' ends and having a compression and 'explosion chamber, and a suction, mixing and compression chamber, and each cylinder having an exhaust port in the compression and explosion chamber and a by-pass connecting the said chambers of tlie'c "linder with each other', the entrance end of the'bypass into the said compression and explosion chamber being opposite and'partly in the .rear of the said exhaust port; pistons reciprocating 1n the said cylinders, a piston rod and a suction check valve foreach cylinder.

In testimony whereof I lia-ve signed my naine to this specification in the presence ol two subscribing witnesses.

GABRIEL P. B. HOYT.

VVit-nesses:

THEO. G. HosrnR, E C. NisLsoN. 

